-82.31% is the change from 277 to 49
Calculation steps:
[( 49 - 277 ) ÷ 277] x 100 = -82.31%
Formula
Percentage change = [(49 - 277) / 277] x 100
Subtract the new number by the original number
49 - 277 = -228
-228 ÷ 277 = -0.8231046931407943
-0.8231046931407943 x 100 = -82.31%